To obtain a product having a reduced irritation when applied to the skin.

This composition contains at least one compound of the formula (Rs are the same or different and are each a straight-chain or branched-chain saturated or unsaturated properly hydroxylated alkyl group or perfluoroalkyl group and contains 1-12 carbon atoms; R's are the same or different and are each a straight-chain or branched-chain saturated or unsaturated properly hydroxylated alkyl group, alkyloxy group or perfluoroalkyl group and contains 1-12 carbon atoms; X is an element selected from magnesium, strontium, barium, zinc, manganese, palladium and copper) in a pathologically acceptable medium in a hydrated or nonhydrated state of the compound.